Thirds to the bouve



2 Sheets-:Sheet 1.

(No Model.)

Patented Oct. 9, 1894.

INVENTDR:

WTNESEEE:

dfiM

(No Mddel.) 2 Sheets- Sheet 2.

P. L. STONE.

MACHINE FOR SPLITTING INSOLBS FOR BOOTS 0R SHOES. No. 527,299. Patented 00p. 9, 1894.

K \X/ITNEESES T R.

12 I 9 mm .UNITED STATES PATENT OFFICE.

FLORENTINE L. STONEOF BROOKTON, MAssAOHUsETTsAssIGNOR OF-TWO- THIRDS TO THE BOUVE, SAME PLACE.

CRAWFORD & COMPANY CORPORATION, OF

. MACHINE FOR SPLITTINGINSOLESXFORBOOTSR SHOES.

SPECIFICATION forming part of. Letters Fatent 527,299, dated October. 9, 1894.

Application filed November 25, 1893. Serial No. 491,990; (No model.)

T0 at whom it may concern;

Be it known that I, FLORENTINE L. STONE,

of Brockton, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Ma:

chines for Splitting Insoles for Bootsor Shoes, of which the following is a specification.

The object of this invention is to provide a machine which will split the heel-portion of an insole, and thereby form a thin flap to cover fastenings which secure the heel, and

thus obviate the use of a separate sock-lining for this purpose; and the invention consists in means for accomplishing the above object, substantially as hereinafter described and claimed. y

The accompanying drawings illustrate an embodiment of the invention.

Figure 1 shows a front elevation of the 29 machine. Fig. Zshows a central cross-sec tion. Fig. 3 shows a top plan View. Fig. 4 shows an end elevation, as viewed from the left of Fig. 3. Fig. 5 shows a section on line 5-5 ofFig. 3. Fig. 6 shows an elevation of the drivinggear-wheel, broken out to illustrate the means for operatively connecting the same with the feed-rollers. Fig. 7 shows a section on line 7-7 of Fig.1. Fig. 8 shows a section on line 88of Fig. 3. Fig. 9 shows a section on line 9-9 of Fig. 1. Fig. 10 shows the product of the machine. l The same letters and figures of reference indicate the same parts in all the figures.

In order that it may first be understood 3 5 what the machine is designed to perform, at-

tention is called to Fig. 10, which shows an edge view of a portion of an insole for boots and shoes, 2 designating the heel part of said insole, which is split lengthwise, as shown,

to form a thin flap 3, which is to cover the heel fastenings issuing through the under portion 2. In order to successfully accomplish the work, it is desirable that provisions be made for regulating the thickness of the flap 3, and also its extent in the direction of length of the sole. Otherprovisions are also desirable, all of which will be fully described hereinafter.

The letter a designates the stationary supporting-frame of the machine; and b a horizontally-disposed cutting-knife, which is mounted upon a block 17', having trunnions which journal in the frame a, and formed with pendent arms 19 "which straddle cranks .b on a shaft b To secure vertical adjustment of the splitting-knife b for regulating the thickness of the flap, the shaft 12 is turned, it beingjournaled in'thefraine a eccentrically with respect to the cranks 19 A handle b aflixed to the shaft on the exterior of said frame, provides a "means for turning said shaft.

it The cutting edge of the knife stands behind a pair of feed-rollers, the upper one 0 of which is supported in stationary bearings on the frame a, while the loweronec' is supported in bearings on a frame 0 pivoted on the driving-shaft d, and bearing on the forward end of a lever 0 to which is connected a rod 0, extending through the base of the frame a, and carrying a spring bearing at one end against the frame and at the opposite end against ahead on said rod. Through these means, the lower feed-roller c is springpressed toward the upper roller, to establish a co-operative relation between the two rollers.

It is desirable that the work be fed through a predetermined distance by the feed-rollers and then released, and to this end each feedroller is formed throughouta portion of its circumference with a raised acting surface 0 whilethe remaining portion 0 of its circum ference recedes and is inoperative. The raised portions 0 of the two rollers are of equal extent, and the rollers are soarranged that these portions always register. Power is transmitted to the upper roller, which is operatively connected with the lower one through gears e.

Means are provided for automatically stopping the feed-rollers at the end of each complete revolution, so that said rollers will begin to operate on a pieceof work at the same point in their acting surfaces, so long as their adjustment remains unchanged. 7 The means here shown for accomplishingthis purpose are as follows: A gear f is mounted loosely on the journal of the upper roll 0, and is in mesh with pinion f on the driving-shaft 10, whereby said gear f is continuously rotated. The gear is formed with a circular recess f entering from its inner side and having at one point an offset f of partly circular form. A head g, which is arranged to rotate with the feed-roller c, carries a stud g, projecting at one end into the recess f of the gear, and there carrying a lug g adapted for engagement with the offsetf in the recess f and actuated by a spring g in a direction to engage said ofiset. On the opposite end, the stud g carries a lugg extending onan angle with respect to the lug g and adapted to abut a bolt it. While the'said lug g is abut-.

ting the bolt h, the lug g is held clear of the ofiset f and the gear and feed-roller are disconnected. The bolt h is arranged to 'slidevertically in a stationary bearing h on the frame a, and is held by a spring b in the path of the lug g Said bolt is connected by a rod h with a treadle (not shown), arranged to be operated by the attendant. When the treadle is depressed, the bolt his withdrawn from engagement with the lug g whereupon the spring 9 throws the lug into the ofiset f and the gear f then drives the feed-rollers. The treadle is released before the feed-rollers have completed a revolution, and the bolt h is restored to its position in the path of the lug g and, as the feed-rollers complete a revolution, said lug g encounters the bolt h and the lug g is thrown out of the ofiset f To prevent the momentum acquired by the feedrollers from carrying them through more than one complete revolution, a brake iis arranged to bear with spring pressure against a beveled stud i on the periphery of the head g, said brake being in the form of a beveled slide, engaging a bearing on the frame a, and having a shank which is surrounded by a spring within said bearing. At the end of each revolution of the rolls, the stud i encounters the brake 'i, and the friction thus created is sufficient to prevent the further rotation of the rolls after they are disconnected from the driving means.

Inrthe operation of the machine, the work is entered between the feed-rollers c and c, the treadle controlling the bolt h is depressed, andthe acting surfaces 0 of the feed-rollers carry the work upon the cutting edge of the knife b. When the ends of said raised surfaces leave the work, the latter is no longer advanced upon the knife, as the depressed portions 0 of the rollers do not co-act in feeding the work.

Means are provided for ejecting the completed work from between the feed-rollers, as follows: The pivotal frame 0 is formed. with a rearwardly and downwardly extending slidewayj, which supports a slide j, having position below the knife b and back of the cutting edge of the same. This slide has a bearing-piece f fastened on its upperside and formed with a shoulderj and a beveled guiding-surface which extends from said shoulder to the under side of the knife against which the bearing-piece abuts. A spring 3' holds the slide up, but is not of sufiicient strength to resist the action of the feed-rollers in advancing the work upon the knife. After the work has passed the cutting edge of the knife I), it abuts the shoulder 3' and the slide j yields to the latter and is pushed back thereby so long as the acting surfaces 0 of the feed-rollers engage the work. Immediately upon said acting surfaces leaving the work, the spring projects the slide 3'', and

the work is thereby pushed out of the ma-' chine.

As the length of the flap 3 may vary in different soles, means are provided for adj usting. the rollers to begin operating on the work at different points in their raised surfaces 0 The upper feed-roller c is adjustably con- I claim as new, and desire to secure by Letters Patent, is

1. In a machine of the character described,"

a splitting-knife; a pair of feed-rollers, one having a raised surface throughout a portion of its circumference adapted to co-act with the other roller in advancing the work upon the knife, and a lower inoperative surface throughout the remainder of its circumference saidroller being adjustable to commence feeding at different points in its raised sur-. face; means for rotating said feed-roller; and means for stopping the same at the end of each complete revolution. r

' 2. A machine of the character described, comprising in its construction a splittingknife, feed-rollers for advancing the work thereagainst to a predetermined extent, and ejecting means for pushing the work back when that extent has been reached.

3. A machine of the character described, comprising in its construction a splittingknife, feed-rollers for advancing the work thereagainst to a predetermined extent, and

work is carried by the feed-rollers.

4. In a machine of the character described work upon the knife, and a lower inoperative two subscribing witnesses, this 20th day of surface throughout the remainder of the cir- November, A. D. 1893.

eumference and ejecting means for pushin the work baick when said lower surface a; FLORENTINE STONE 5 rives opposite the opposed roller. Witnesses:

In testimony whereof I have signed my A. D. HARRISON, name to this specification, in the presence of WALTER F. MCLEOD. 

